Potassium Cyanide
Molecular Weight: 65.12
Appearance and Odor: Colorless cubic crystals, or white granules/powder, possessing a faint odor resembling bitter almonds; industrial-grade products often appear slightly grayish-white or yellowish.
Solubility: Highly soluble in water, forming a strongly alkaline aqueous solution; soluble in methanol and glycerol; slightly soluble in ethanol; insoluble in organic solvents such as ether and benzene.
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Potassium Cyanide
Molecular Formula: KCN; Molecular Weight: 65.12
Appearance and Odor: Colorless cubic crystals, or white granules/powder, possessing a faint odor resembling bitter almonds; industrial-grade products often appear slightly grayish-white or yellowish.
Solubility: Highly soluble in water, forming a strongly alkaline aqueous solution; soluble in methanol and glycerol; slightly soluble in ethanol; insoluble in organic solvents such as ether and benzene.
Stability: Stable under dry conditions, at room temperature, and when kept in a sealed container; decomposes very readily upon contact with acids or moist air, releasing highly toxic hydrogen cyanide (HCN) gas; aqueous solutions undergo slow hydrolysis upon prolonged standing or heating, yielding potassium formate and ammonia.
Storage Restrictions: Strictly prohibited from being stored together with strong oxidizers, halogens, or acids, as such mixtures are prone to violent reactions and pose a risk of explosion.
Physical Parameters
Melting Point: 634.5°C; Boiling Point: 1625°C; Density: 1.52 g/cm³.
Toxicity: Highly toxic; can cause rapid death through absorption via the respiratory tract, digestive tract, or intact skin. It is classified as a nationally controlled highly toxic chemical.
Hazardous Properties, Safety, and Handling
Extreme Toxicity: Fatal upon inhalation, ingestion, or skin contact; immediately releases highly toxic hydrogen cyanide gas upon contact with acids.
Incompatible Materials: Must not be stored or transported together with acids, strong oxidizing agents, foodstuffs, or animal feed.
Storage: Store in a dedicated warehouse for highly toxic chemicals, utilizing a dual-person, dual-lock system with designated personnel responsible for management; maintain a dry, sealed environment, ensuring protection against moisture, seepage, and exposure to light.
Transport: Transport must be conducted via dedicated vehicles specifically authorized for highly toxic hazardous chemicals, accompanied by designated escorts, and subject to strict regulatory approval; ensure protection against physical damage, rain, and direct sunlight; general logistics carriers and bulk shipments are strictly prohibited.
Emergency Response: In the event of a spill, immediately detoxify the area by neutralizing the cyanide using sodium hypochlorite, bleaching powder, or alkaline oxidizing agents; in cases of human poisoning, victims must be immediately evacuated from the contaminated zone and receive specialized medical treatment for cyanide poisoning.
Important Notice: Potassium cyanide is a highly toxic chemical subject to strict national regulatory control. Its production, distribution, procurement, usage, storage, and transport all require specific regulatory permits and qualifications; unauthorized private purchase, sale, or storage is strictly prohibited.
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